From: Justin Pryzby <pryzby@telsasoft.com>
To: Simen Andreas Andreassen Lønsethagen <simen.lonsethagen@fremtind.no>
Cc: pgsql-performance@lists.postgresql.org
Subject: Re: Performance of lateral join
Date: Mon, 26 Jul 2021 13:17:45 -0500
Message-ID: <20210726181745.GE23997@telsasoft.com> (raw)
In-Reply-To: <A67CAB4B-C442-4641-BDF1-EDBE1DBF5876@fremtind.no>
References: <A67CAB4B-C442-4641-BDF1-EDBE1DBF5876@fremtind.no>
On Mon, Jul 26, 2021 at 01:56:54PM +0000, Simen Andreas Andreassen Lønsethagen wrote:
> To create the subsets, I (or rather my application) will receive lists of records which should be matched according to some business logic. Each of these lists will be read into a temporary table:
Easy first question: is the temp table analyzed before being used in a join ?
(This is unrelated to "explain analyze").
> I am running PostgreSQL 11.9 on x86_64-pc-linux-gnu using AWS Aurora on a db.t3.large instance (https://aws.amazon.com/rds/instance-types/). The output of
> FROM pg_settings
> is attached in pg_settings.conf.
I think the attachment is missing.
--
Justin
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To: pgsql-performance@postgresql.org
Cc: pryzby@telsasoft.com, simen.lonsethagen@fremtind.no, pgsql-performance@lists.postgresql.org
Subject: Re: Performance of lateral join
In-Reply-To: <20210726181745.GE23997@telsasoft.com>
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